User`s manual

Programming Site Data 3-17
December 2003
Entering Parameters for Clamp-On Transducers
(cont.)
4C.Entering the Outside Diameter of the Pipe
If you do not know the outside diameter (OD) of your pipe, use
either the on-line help or consult Sound Speeds and Pipe Size
Data that contains some standard pipe sizes with their
corresponding outside diameters. For greater accuracy, measure
the pipe OD at the location where the transducers will be
mounted. The PT868 can also calculate the outside diameter from
the pipe circumference.
To enter the outside diameter or circumference:
a. Press the appropriate feature key to select the units. You
can enter the outside diameter in inches (F1) or feet (F2),
or the circumference in inches (F3) or feet (F4).
b. Use the numeric keys to enter the outside diameter or
circumference.
c. Press [ENT].
5C.Entering the Pipe Wall Thickness
If you are not sure of the pipe wall thickness, use either the on-
line help or consult Sound Speeds and Pipe Size Data that
contains some standard pipe sizes with their corresponding wall
thicknesses. For greater accuracy, the pipe wall thickness can be
determined by using the optional internal ultrasonic thickness
gage as described in Chapter 9, Using the Ultrasonic Thickness
Gage.
Use the numeric keys to enter the pipe wall thickness and press
[ENT].